Philippines forces take cover during a fire fight with Muslim rebels in Zamboanga on September 12, 2013. At least 22 people have been killed and 52 wounded in five days of fighting, while 19 of the gunmen have surrendered or been captured

Philippines forces take cover during a fire fight with Muslim rebels in Zamboanga on September 12, 2013. At least 22 people have been killed and 52 wounded in five days of fighting, while 19 of the gunmen have surrendered or been captured